Abstract
The transcription factor Z4 (putzig) is one of the key proteins that determine the chromatin structure in Drosophila. Z4 is found at the boundaries of bands on polytene chromosomes, and the bands are currently thought to correlate with chromatin domains. Z4 is a component of a protein complex that additionally includes Chromator and BEAF-32, and a conserved domain is necessary to occur at the N end of Z4 to ensure its interaction with the two proteins. In this study, a zinc finger-associated domain (ZAD) domain was identified in Z4. The capability of dimerization was confirmed for the domain by biochemical methods. A dimer model of the domain was obtained using AlphaFold2, and the model structure was confirmed using small-angle X-ray scattering (SAXS). The dimer structure shows a fold typical of ZAD domains.
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Schedule a callMore From: Doklady biological sciences : proceedings of the Academy of Sciences of the USSR, Biological sciences sections
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